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FW: seaint Digest for 16 Jan 2010

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Don't know if this one has been answered or not, but here's a link to some info that should help:

Also, on the APA website, there's a document called: "Technical Topics: Effect of Overdriven Fasteners On Shear Capacity" (Form TT-012).



John "Buddy" Showalter, P.E. 
Director, Technical Media 

American Wood Council
Engineered and Traditional Wood Products
1111 19th Street, NW, Suite 800 
Washington, DC 20036 

The American Wood Council (AWC) is the wood products division of the American Forest & Paper Association (AF&PA). AWC develops internationally recognized standards for wood design and construction. Its efforts with building codes and standards, engineering and research, and technology transfer ensure proper application for engineered and traditional wood products.
The guidance provided herein is not a formal interpretation of any AF&PA standard. Interpretations of AF&PA standards are only available through a formal process outlined in AF&PA's standards development procedures.

1                                Message:0001                            1
From: Larry Hauer <lhauer(--nospam--at)>
To: "Struct. Eng. Assoc." <seaint(--nospam--at)>
Subject: Plywood Shear Wall Nailing

To All=2C

I have a wood framed commercial building project that has been stopped in m=
id-construction due to the economy. The plywood shear walls=2C (actually OS=
B Exposure I=2C Exterior Type)=2C have been exposed to several rains and so=
me of the nail heads appear to be sunk into the plywood about 1/16"- I thin=
k because of swelling of the OSB. I remember that somewhere there is an all=
owance for overdriving nails into plywood and I would assume that requireme=
nt could apply here- but I can't remember where that requirement is.=20

Can anyone help?

Thanks in Advance=2C

Larry Hauer S.E.

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